Tongou TOQCB2 Poll issue

[jrecaspiorno]

Description

Hi!

The Tongou TOQCB2 WiFi Circuit Breaker device reports the current, power and voltage values every 10 minutes or so. This sampling period is not fast enough for the automations I want to create, so I have enabled the Poll only option during configuration.

When I do this, the current, power and voltage values are no longer valid, they appear as 'unknown',although values like temperature are still updated correctly every 30s.

The following warnings appear in the Homeassistant log:

Logger: custom_components.tuya_local.device
Source: custom_components/tuya_local/device.py:338
integration: Tuya Local (documentation, issues)
First occurred: 5:42:01 PM (1 occurrences)
Last logged: 5:42:01 PM

Circuit breaker error reading: Network Error: Unable to Connect

and

Logger: custom_components.tuya_local.device
Source: custom_components/tuya_local/device.py:251
integration: Tuya Local (documentation, issues)
First occurred: 5:42:01 PM (1 occurrences)
Last logged: 5:42:01 PM

Circuit breaker receive loop has terminated

I would need the power to update every 30s or so, just like the temperature does.

I would appreciate any help I can get from the community to debug and fix this problem. I don't have a lot of experience with Homeassistant, but I am good with anything computer related.

Steps to reproduce

Configure Local Tuya device Tongou TOQCB2 WiFi Circuit Breaker as tongou_qcb2_singlephasebreaker and select Poll only (try this if your device does not work fully)

Expected behaviour

The device sends current, power and voltage information every 30s.

Additional context

No response

Confirmation

• I am sure this is a bug or improvement, that is well enough described that it can be implemented.

• This report is for tuya-local, not for localtuya.

• If this is for a specific device, the device config is mentioned above, or diagnostics are included.

• Log messages or diagnostics relevant to the issue are included.

• This is not requesting addition of a new device.

[jrecaspiorno]

I put my findings here:

1. I have noticed that the device sends the energy measurement every 10s approx. if I keep Tuya app open. As soon as the app is closed, and after about 20min, the measurement is sent every 10 minutes.
2. I have managed to register both the pairing and the communication with the server that makes the Tuya app, it is possible that if I send the same command that sends the app I get the measure to be updated every 10s, unfortunately they use TlSv1.2 and I do not have access to the certificates to decode it and replicate the communication.
3. Researching in Tuya's cloud platform I have seen the characteristics of the device, the one related to the power I need is the following (automatic translation from Chinese of the description)

{\"abilityId\":6,\"accessMode\":\"ro\",\"code\":\"phase_a\",\"description\"
“description\”:\
  "1, A-phase voltage, current and power\\\\
  n2, Big-end Mode, HEX format, 8 bytes in total\\\
  n3, unit accuracy: 
    voltage, 2 bytes, unit 0.1V. 
    current, 3 bytes, unit 0.001A. A-phase active power, 3 bytes, unit 0.001kW\
  n4, telegram format\
  n4, message format\
  n5, unit 0.001kW. 0.1V. current, 3 bytes, unit 0.001A . A-phase active power, 3 bytes, unit 0.001kW\\\
  n4, message format\\\nFor example: 08 80 00 03 E8 00 27 10 means that the A-phase 217.6V, the A-phase current 1.000A, the A-phase power 10.000KW\\
  n5, the communication logic: \\\
    n1) the user enters the panel, active Query. The user enters the panel, the panel immediately sends down 0x08 to the meter, the meter reports the data to the cloud platform, the panel gets the data and then displays it. Note: The latest WIFI support.   \\\
    n2) The meter reports data based on a certain period. Suggestion: In WIFI mode, report once every 15 seconds. in NB mode, report once every 1 hour. 
  \“,\”extensions\“:{\”iconName\“:\”icon-dp_lightning\“,\”attribute\“:\”1152\“},\”name\“:\”A-phase voltage, current and power\“,\”typeSpec\“:{\”type\“:\”raw \“,\”maxlen\":128}}},

So it seems to me that sending 0x08 to dps 6 (or something like that) could solve my problems, I tried to do it with a script like this:

import tinytuya

DEVICE_ID=...
IP_ADDRESS=...
LOCAL_KEY=...

d=tinytuya.OutletDevice(DEVICE_ID, IP_ADDRESS, LOCAL_KEY)
d.set_version(3.4)
payload=d.generate_payload(tinytuya.CONTROL, {'6': '0x08'})
response = d._send_receive(payload)
print(response)

But, unfortunately, I did not achieve the desired effect. I have also tried to use the Tuya interface for sending messages such as

{
  "commands": [
    {
      "code": "phase_a",
      "value": "0x08"
    }
  ]
}

Any ideas? any help would be welcome

P.S. I keep an old phone with the app open and with activity using an auto clik app so the power is updated every 10s automatically

[make-all]

There is a "Live updates" switch in the config. Does that not work? I think it self-resets after some timeout, so you need to periodically switch it back on to continuously get frequent updates. Keep in mind that there may be some internal technical reason the manufacturer designed it not to always send frequent updates, so if there is some other criteria you can use in an automation to turn on high frequency monitoring, then it may be better to do that than to keep it on all the time.

[jrecaspiorno]

Hi Jason

Thanks for your reply, could you tell me what exactly do you mean by “Live updates” switch? I have searched both in the repository and in the device configuration in HA and in the Cloud Tuya interface and I have not found reference to that switch, but it looks promising.

As for what you tell me about controlling when the device is sending data at high frequency and avoid abusing it, that is my intention, just increase the sample rate at certain times that I need fine monitoring of consumption.

Regards

[make-all]

I mean the switch that is defined here

[jrecaspiorno]

According to the device characteristics consulted in the cloud, the pd 109 corresponds to the connection status with the server:

{
  "result": {
    "properties": [
      {
        "code": "online_state",
        "custom_name": "online",
        "dp_id": 109,
        "time": 1743446182093,
        "type": "enum",
        "value": "online"
      }
    ]
  },
  "success": true,
  "t": 1743450944979,
  "tid": "2213510f0e6a11f093c95697c6631661"
}

The device is online if it is connected to the Internet (in my case always). What I did see in the cloud server log is that the Tuya app sends the following message when it communicates with the device:

Time                 Device Event	DP ID	          Event Details	  	Source	      	Source Details
2025-03-31 17:07:05   Publish	      	Online state	  Online	      app client	  appName:Smart Life,ios-packageName:...

but I am not able to replicate the message to force high frequency updates.

[make-all]

They just seem to have converted it to human readable values by capitalising and changing the underscore to a space. It is the same signal. It might help if I change the switch to a button, so that a press just sends "online" regardless of the current state.

[jrecaspiorno]

Well you were right, doing an off/on cycle makes the device read at a high frequency, thank you very much for your help Jason!

If you change it to a button I think that would be good.